Facility Becomes the Largest in Iowa to Achieve Gold Certification WEST DES MOINES, Iowa--(BUSINESS WIRE)--Aviva USA’s new headquarters has become the largest LEED-gold certified building in Iowa and one of only five its size or larger in America to achieve that designation, according to the U.S. Green Building Council. LEED stands for Leadership in Energy and Environmental Design. The U.S. Green Building Council informed Aviva USA that it had been awarded gold certification on the 360,000-square-foot building. Aviva USA is part of Aviva plc – the world’s sixth-largest insurance group and the first global insurance company to become carbon-neutral. Aviva’s project becomes the 24th LEED gold building in Iowa and only the fourth in metropolitan Des Moines.
